Атомне розупорядкування та електронна будова сплаву Хойслера CoTiSb

With the help of the Linearized Augmented Plane Wave (LAPW) method, the role of some structural types of CoTiSb alloy in the formation of its energy, spatial, spectral, and spin characteristics has been clarified. The ground state of CoTiSb alloy, which is characterized by the highest cohesive energ...

Повний опис

Збережено в:
Бібліографічні деталі
Дата:2018
Автори: Uvarov, V. N., Uvarov, N. V., Bespalov, S. A., Nemoshkalenko, M. V.
Формат: Стаття
Мова:English
Ukrainian
Опубліковано: Publishing house "Academperiodika" 2018
Теми:
Онлайн доступ:https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018708
Теги: Додати тег
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Назва журналу:Ukrainian Journal of Physics

Репозиторії

Ukrainian Journal of Physics
Опис
Резюме:With the help of the Linearized Augmented Plane Wave (LAPW) method, the role of some structural types of CoTiSb alloy in the formation of its energy, spatial, spectral, and spin characteristics has been clarified. The ground state of CoTiSb alloy, which is characterized by the highest cohesive energy, is found to be realized in the case where atoms and vacancies are arranged like in the C1ba phase. Transitions to the L2ac and B2c phases with different arrangements of alloy components in their crystal lattices are accompanied by the emergence of high-energy metastable states. CoTiSb alloy in the ground state is a nonmagnetic insulator. The metastable phases transform into metals with spin-polarized electron states and magnetic moments mainly localized at cobalt atoms.